package com.sort;

import java.util.ArrayList;
import java.util.List;

public class BucketSort {
  public static void bucketSort(double [] data){
    List<Double>[] b=new ArrayList[data.length];
    for(int i=0;i<b.length;i++){
      b[i]=new ArrayList<Double>();
    }
    for(int i=0;i<data.length;i++){
      b[(int)Math.floor(data.length*data[i])].add(data[i]);
    }
    for(int i=0;i<data.length;i++){
      insertSort(b[i]);
    }
    int k=0;
    for(int i=0;i<b.length;){
      for(int j=0;j<b[k].size();j++){
        data[i]=b[k].get(j);
        i++;
      }
      k++;
    }
  }
  private static void insertSort(List<Double> source){
    for(int i=0;i<source.size();i++){
      for(int j=0;j<i;j++){
        if(source.get(i)<source.get(j)){
          double tmp=source.get(j);
          source.set(j, source.get(i));
          if(i-j==1){
            source.set(i, tmp);
          }else{
            for(int k=i;k>=j+2;k--){
              source.set(k, source.get(k-1));
            }
            source.set(j+1, tmp);
          }
          
        }
      }
    }
  }
  public static void main(String[] args) {
    double [] data=new double[]{0.1,0.3,0.2,0.88,0.87,0.33,0.37,0.35};
    for(int i=0;i<data.length;i++){
      System.out.print(data[i]+" ");
    }
    System.out.println();
    bucketSort(data);
    for(int i=0;i<data.length;i++){
      System.out.print(data[i]+" ");
    }
    System.out.println();
  }

}